Calculate area from featurecollection

[AlexandreCandidoXavier]

Why the calculation of the area works for these code:

import ee
import geemap
gaul = ee.FeatureCollection('FAO/GAUL_SIMPLIFIED_500m/2015/level2')
kerala = gaul.filter(ee.Filter.eq('ADM1_NAME', 'Kerala'))
stateArea = kerala.geometry().area()
stateAreaSqKm = ee.Number(stateArea).divide(1e6).round()
stateAreaSqKm 
// 37999

But it is not working for this:

# code adapted from 
# https://colab.research.google.com/github/gee-community/geemap/blob/master/examples/notebook/10_shapefiles.ipynb#scrollTo=4icQ4l1KVimK
# shape file: https://github.com/gee-community/geemap/tree/master/examples/data
import geemap
import ee
countries_shp = '../data/countries.shp'
countries = geemap.shp_to_ee(countries_shp)
brazil = countries.filter(ee.Filter.eq('NAME', 'Brazil'))
brazilArea = brazil.geometry().area()
brazilAreaKm = ee.Number(brazilArea).divide(1e6).round()
brazilAreaKm
// <ee.ee_number.Number object at 0x7ee5111d3970>

I appreciate help.

[giswqs]

Please specify a non-zero error margin, such as

brazilArea = brazil.geometry().area(1)

[AlexandreCandidoXavier]

Thanks!

I though the method "area" argument would not be necessary, because in the first code its working without it, stateArea = kerala.geometry().area(). By the way, why it was not necessary in the first code?

Congratulation for the great job you are done with "geemap"!